Find the volume of the solid generated by revolving the region about the y-axis.The region enclosed by the triangle with vertices (0, 0), (1, 0), (1, 2)
A. 
?
B. 4?
C. 
?
D. 
?
Answer: D
Mathematics
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Find the center and radius of the sphere.2x2 + 2y2 + 2z2 - x + y - z = 9
A. C
, a = 
B. C
, a =
C. C
, a = 
D. C
, a = 
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Find the product.9x5(6x7 - 5)
A. 54x7 - 45 B. 9x5 C. 54x12 - 45x5 D. 54x12 - 5
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Shade the portion of the diagram that represents the given set.(
? B) ? C
A. 
B. 
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Determine whether the pair of lines is parallel, perpendicular, or neither.y = 4 - 1.25x y = - 
x - 4
A. Parallel B. Perpendicular C. Neither
Mathematics